Introduction

XML (eXtensible Markup Language) is a data format for structured
document interchange on the Web. It is a standard defined by
The World Wide Web consortium (W3C). Information about XML and
related technologies can be found at » http://www.w3.org/XML/.

This PHP extension implements support for James Clark's
expat in PHP. This toolkit lets you
parse, but not validate, XML documents. It supports three
source character encodings
also provided by PHP: US-ASCII,
ISO-8859-1 and UTF-8.
UTF-16 is not supported.

This extension lets you create XML parsers
and then define handlers for different XML
events. Each XML parser also has a few parameters you
can adjust.